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kdelibs/kde3support/kio/kfile/k3filetreeview.cpp
Ivailo Monev 814163a8dc initial import
2014-11-13 01:04:59 +02:00

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/* This file is part of the KDEproject
Copyright (C) 2000 David Faure <faure@kde.org>
2000 Carsten Pfeiffer <pfeiffer@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "k3filetreeview.h"
#include "kfiletreebranch.h"
#include <Qt3Support/Q3Header>
#include <QtGui/QKeyEvent>
#include <QtCore/QTimer>
#include <QtCore/QDir>
#include <QtGui/QApplication>
#include <kdebug.h>
#include <kglobalsettings.h>
#include <kfileitem.h>
#include <kmimetype.h>
#include <kstandarddirs.h>
#include <stdlib.h>
#include <assert.h>
#include <kio/job.h>
#include <kio/global.h>
#include <kiconloader.h>
K3FileTreeView::K3FileTreeView( QWidget *parent )
: K3ListView( parent ),
m_wantOpenFolderPixmaps( true )
{
setDragEnabled(true);
setSelectionModeExt( K3ListView::Single );
m_animationTimer = new QTimer( this );
connect( m_animationTimer, SIGNAL(timeout()),
this, SLOT(slotAnimation()) );
m_currentBeforeDropItem = 0;
m_dropItem = 0;
m_autoOpenTimer = new QTimer( this );
connect( m_autoOpenTimer, SIGNAL(timeout()),
this, SLOT(slotAutoOpenFolder()) );
/* The executed-Slot only opens a path, while the expanded-Slot populates it */
connect( this, SIGNAL(executed(Q3ListViewItem*)),
this, SLOT(slotExecuted(Q3ListViewItem*)) );
connect( this, SIGNAL(expanded(Q3ListViewItem*)),
this, SLOT(slotExpanded(Q3ListViewItem*)));
connect( this, SIGNAL(collapsed(Q3ListViewItem*)),
this, SLOT(slotCollapsed(Q3ListViewItem*)));
/* connections from the konqtree widget */
connect( this, SIGNAL(selectionChanged()),
this, SLOT(slotSelectionChanged()) );
connect( this, SIGNAL(onItem(Q3ListViewItem*)),
this, SLOT(slotOnItem(Q3ListViewItem*)) );
connect( this, SIGNAL(itemRenamed(Q3ListViewItem*,QString,int)),
this, SLOT(slotItemRenamed(Q3ListViewItem*,QString,int)));
m_bDrag = false;
m_branches.setAutoDelete( true );
m_openFolderPixmap = DesktopIcon( "folder-open",KIconLoader::SizeSmall,KIconLoader::ActiveState );
}
K3FileTreeView::~K3FileTreeView()
{
// we must make sure that the KFileTreeViewItems are deleted _before_ the
// branches are deleted. Otherwise, the KFileItems would be destroyed
// and the KFileTreeViewItems had dangling pointers to them.
hide();
clear();
m_branches.clear(); // finally delete the branches and KFileItems
}
bool K3FileTreeView::isValidItem( Q3ListViewItem *item)
{
if (!item)
return false;
Q3PtrList<Q3ListViewItem> lst;
Q3ListViewItemIterator it( this );
while ( it.current() )
{
if ( it.current() == item )
return true;
++it;
}
return false;
}
void K3FileTreeView::contentsDragEnterEvent( QDragEnterEvent *ev )
{
if ( ! acceptDrag( ev ) )
{
ev->ignore();
return;
}
ev->acceptProposedAction();
m_currentBeforeDropItem = selectedItem();
Q3ListViewItem *item = itemAt( contentsToViewport( ev->pos() ) );
if( item )
{
m_dropItem = item;
m_autoOpenTimer->start( (QApplication::startDragTime() * 3) / 2 );
}
else
{
m_dropItem = 0;
}
}
void K3FileTreeView::contentsDragMoveEvent( QDragMoveEvent *e )
{
if( ! acceptDrag( e ) )
{
e->ignore();
return;
}
e->acceptProposedAction();
Q3ListViewItem *afterme;
Q3ListViewItem *parent;
findDrop( e->pos(), parent, afterme );
// "afterme" is 0 when aiming at a directory itself
Q3ListViewItem *item = afterme ? afterme : parent;
if( item && item->isSelectable() )
{
setSelected( item, true );
if( item != m_dropItem ) {
m_autoOpenTimer->stop();
m_dropItem = item;
m_autoOpenTimer->start( (QApplication::startDragTime() * 3) / 2 );
}
}
else
{
m_autoOpenTimer->stop();
m_dropItem = 0;
}
}
void K3FileTreeView::contentsDragLeaveEvent( QDragLeaveEvent * )
{
// Restore the current item to what it was before the dragging (#17070)
if ( isValidItem(m_currentBeforeDropItem) )
{
setSelected( m_currentBeforeDropItem, true );
ensureItemVisible( m_currentBeforeDropItem );
}
else if ( isValidItem(m_dropItem) )
setSelected( m_dropItem, false ); // no item selected
m_currentBeforeDropItem = 0;
m_dropItem = 0;
}
void K3FileTreeView::contentsDropEvent( QDropEvent *e )
{
m_autoOpenTimer->stop();
m_dropItem = 0;
kDebug(250) << "contentsDropEvent !";
if( ! acceptDrag( e ) ) {
e->ignore();
return;
}
e->acceptProposedAction();
Q3ListViewItem *afterme;
Q3ListViewItem *parent;
findDrop(e->pos(), parent, afterme);
//kDebug(250) << " parent=" << (parent?parent->text(0):QString())
// << " afterme=" << (afterme?afterme->text(0):QString()) << endl;
if (e->source() == viewport() && itemsMovable())
movableDropEvent(parent, afterme);
else
{
emit dropped(e, afterme);
emit dropped(this, e, afterme);
emit dropped(e, parent, afterme);
emit dropped(this, e, parent, afterme);
KUrl::List urls = KUrl::List::fromMimeData( e->mimeData() );
if ( urls.isEmpty() )
return;
emit dropped( this, e, urls );
KUrl parentURL;
if( parent )
parentURL = static_cast<K3FileTreeViewItem*>(parent)->url();
else
// can happen when dropping above the root item
// Should we choose the first branch in such a case ??
return;
emit dropped( urls, parentURL );
emit dropped( this , e, urls, parentURL );
}
}
bool K3FileTreeView::acceptDrag(QDropEvent* e ) const
{
bool ancestOK= acceptDrops();
// kDebug(250) << "Do accept drops: " << ancestOK;
ancestOK = ancestOK && itemsMovable();
// kDebug(250) << "acceptDrag: " << ancestOK;
// kDebug(250) << "canDecode: " << KUrl::List::canDecode(e->mimeData());
// kDebug(250) << "action: " << e->action();
/* K3ListView::acceptDrag(e); */
/* this is what K3ListView does:
* acceptDrops() && itemsMovable() && (e->source()==viewport());
* ask acceptDrops and itemsMovable, but not the third
*/
return ancestOK && KUrl::List::canDecode( e->mimeData() ) &&
// Why this test? All DnDs are one of those AFAIK (DF)
( e->dropAction() == Qt::CopyAction
|| e->dropAction() == Qt::MoveAction
|| e->dropAction() == Qt::LinkAction );
}
Q3DragObject * K3FileTreeView::dragObject()
{
KUrl::List urls;
const QList<Q3ListViewItem *> fileList = selectedItems();
for (int i = 0; i < fileList.size(); ++i)
{
urls.append( static_cast<K3FileTreeViewItem*>(fileList.at(i))->url() );
}
QPoint hotspot;
QPixmap pixmap;
if( urls.count() > 1 ){
pixmap = DesktopIcon( "kmultiple", 16 );
}
if( pixmap.isNull() )
pixmap = currentKFileTreeViewItem()->fileItem().pixmap( 16 );
hotspot.setX( pixmap.width() / 2 );
hotspot.setY( pixmap.height() / 2 );
#if 0 // there is no more kurldrag, this should use urls.setInMimeData( mimeData ) instead
Q3DragObject* dragObject = new KUrlDrag( urls, this );
if( dragObject )
dragObject->setPixmap( pixmap, hotspot );
return dragObject;
#endif
return 0;
}
void K3FileTreeView::slotCollapsed( Q3ListViewItem *item )
{
K3FileTreeViewItem *kftvi = static_cast<K3FileTreeViewItem*>(item);
kDebug(250) << "hit slotCollapsed";
if( kftvi && kftvi->isDir())
{
item->setPixmap( 0, itemIcon(kftvi));
}
}
void K3FileTreeView::slotExpanded( Q3ListViewItem *item )
{
kDebug(250) << "slotExpanded here !";
if( ! item ) return;
K3FileTreeViewItem *it = static_cast<K3FileTreeViewItem*>(item);
KFileTreeBranch *branch = it->branch();
/* Start the animation for the branch object */
if( it->isDir() && branch && item->childCount() == 0 )
{
/* check here if the branch really needs to be populated again */
kDebug(250 ) << "starting to open " << it->url().prettyUrl();
startAnimation( it );
bool branchAnswer = branch->populate( it->url(), it );
kDebug(250) << "Branches answer: " << branchAnswer;
if( ! branchAnswer )
{
kDebug(250) << "ERR: Could not populate!";
stopAnimation( it );
}
}
/* set a pixmap 'open folder' */
if( it->isDir() && isOpen( item ) )
{
kDebug(250)<< "Setting open Pixmap";
item->setPixmap( 0, itemIcon( it )); // 0, m_openFolderPixmap );
}
}
void K3FileTreeView::slotExecuted( Q3ListViewItem *item )
{
if ( !item )
return;
/* This opens the dir and causes the Expanded-slot to be called,
* which strolls through the children.
*/
if( static_cast<K3FileTreeViewItem*>(item)->isDir())
{
item->setOpen( !item->isOpen() );
}
}
void K3FileTreeView::slotAutoOpenFolder()
{
m_autoOpenTimer->stop();
if ( !isValidItem(m_dropItem) || m_dropItem->isOpen() )
return;
m_dropItem->setOpen( true );
m_dropItem->repaint();
}
void K3FileTreeView::slotSelectionChanged()
{
if ( !m_dropItem ) // don't do this while the dragmove thing
{
}
}
KFileTreeBranch* K3FileTreeView::addBranch( const KUrl &path, const QString& name,
bool showHidden )
{
const QPixmap& folderPix = KIconLoader::global()->loadMimeTypeIcon( KMimeType::mimeType("inode/directory")->iconName(),
KIconLoader::Desktop, KIconLoader::SizeSmall );
return addBranch( path, name, folderPix, showHidden);
}
KFileTreeBranch* K3FileTreeView::addBranch( const KUrl &path, const QString& name,
const QPixmap& pix, bool showHidden )
{
kDebug(250) << "adding another root " << path.prettyUrl();
/* Open a new branch */
KFileTreeBranch *newBranch = new KFileTreeBranch( this, path, name, pix,
showHidden );
return addBranch(newBranch);
}
KFileTreeBranch *K3FileTreeView::addBranch(KFileTreeBranch *newBranch)
{
connect( newBranch, SIGNAL(populateFinished(K3FileTreeViewItem*)),
this, SLOT(slotPopulateFinished(K3FileTreeViewItem*)));
connect( newBranch, SIGNAL( newTreeViewItems( KFileTreeBranch*,
const K3FileTreeViewItemList& )),
this, SLOT( slotNewTreeViewItems( KFileTreeBranch*,
const K3FileTreeViewItemList& )));
m_branches.append( newBranch );
return( newBranch );
}
KFileTreeBranch *K3FileTreeView::branch( const QString& searchName )
{
KFileTreeBranch *branch = 0;
Q3PtrListIterator<KFileTreeBranch> it( m_branches );
while ( (branch = it.current()) != 0 ) {
++it;
QString bname = branch->name();
kDebug(250) << "This is the branches name: " << bname;
if( bname == searchName )
{
kDebug(250) << "Found branch " << bname << " and return ptr";
return( branch );
}
}
return ( 0L );
}
KFileTreeBranchList& K3FileTreeView::branches()
{
return( m_branches );
}
bool K3FileTreeView::removeBranch( KFileTreeBranch *branch )
{
if(m_branches.contains(branch))
{
delete (branch->root());
m_branches.remove( branch );
return true;
}
else
{
return false;
}
}
void K3FileTreeView::setDirOnlyMode( KFileTreeBranch* branch, bool bom )
{
if( branch )
{
branch->setDirOnlyMode( bom );
}
}
void K3FileTreeView::slotPopulateFinished( K3FileTreeViewItem *it )
{
if( it && it->isDir())
stopAnimation( it );
}
void K3FileTreeView::slotNewTreeViewItems( KFileTreeBranch* branch, const K3FileTreeViewItemList& itemList )
{
if( ! branch ) return;
kDebug(250) << "hitting slotNewTreeViewItems";
/* Sometimes it happens that new items should become selected, i.e. if the user
* creates a new dir, he probably wants it to be selected. This can not be done
* right after creating the directory or file, because it takes some time until
* the item appears here in the treeview. Thus, the creation code sets the member
* m_neUrlToSelect to the required url. If this url appears here, the item becomes
* selected and the member nextUrlToSelect will be cleared.
*/
if( ! m_nextUrlToSelect.isEmpty() )
{
K3FileTreeViewItemListIterator it( itemList );
bool end = false;
for( ; !end && it.current(); ++it )
{
KUrl url = (*it)->url();
if( m_nextUrlToSelect.equals(url, KUrl::CompareWithoutTrailingSlash )) // ignore trailing / on dirs
{
setCurrentItem( static_cast<Q3ListViewItem*>(*it) );
m_nextUrlToSelect = KUrl();
end = true;
}
}
}
}
QPixmap K3FileTreeView::itemIcon( K3FileTreeViewItem *item, int gap ) const
{
QPixmap pix;
kDebug(250) << "Setting icon for column " << gap;
if( item )
{
/* Check if it is a branch root */
KFileTreeBranch *brnch = item->branch();
if( item == brnch->root() )
{
pix = brnch->pixmap();
if( m_wantOpenFolderPixmaps && brnch->root()->isOpen() )
{
pix = brnch->openPixmap();
}
}
else
{
// TODO: different modes, user Pixmaps ?
pix = item->fileItem().pixmap( KIconLoader::SizeSmall ); // , KIconLoader::DefaultState);
/* Only if it is a dir and the user wants open dir pixmap and it is open,
* change the fileitem's pixmap to the open folder pixmap. */
if( item->isDir() && m_wantOpenFolderPixmaps )
{
if( isOpen( static_cast<Q3ListViewItem*>(item)))
pix = m_openFolderPixmap;
}
}
}
return pix;
}
void K3FileTreeView::slotAnimation()
{
MapCurrentOpeningFolders::Iterator it = m_mapCurrentOpeningFolders.begin();
MapCurrentOpeningFolders::Iterator end = m_mapCurrentOpeningFolders.end();
for (; it != end;)
{
K3FileTreeViewItem *item = it.key();
if (!isValidItem(item))
{
++it;
m_mapCurrentOpeningFolders.remove(item);
continue;
}
uint & iconNumber = it.value().iconNumber;
QString icon = QString::fromLatin1( it.value().iconBaseName ).append( QString::number( iconNumber ) );
// kDebug(250) << "Loading icon " << icon;
item->setPixmap( 0, DesktopIcon( icon,KIconLoader::SizeSmall,KIconLoader::ActiveState )); // KFileTreeViewFactory::instance() ) );
iconNumber++;
if ( iconNumber > it.value().iconCount )
iconNumber = 1;
++it;
}
}
void K3FileTreeView::startAnimation( K3FileTreeViewItem * item, const char * iconBaseName, uint iconCount )
{
/* TODO: allow specific icons */
if( ! item )
{
kDebug(250) << " startAnimation Got called without valid item !";
return;
}
m_mapCurrentOpeningFolders.insert( item,
AnimationInfo( iconBaseName,
iconCount,
itemIcon(item, 0) ) );
if ( !m_animationTimer->isActive() )
m_animationTimer->start( 50 );
}
void K3FileTreeView::stopAnimation( K3FileTreeViewItem * item )
{
if( ! item ) return;
kDebug(250) << "Stoping Animation !";
MapCurrentOpeningFolders::Iterator it = m_mapCurrentOpeningFolders.find(item);
if ( it != m_mapCurrentOpeningFolders.end() )
{
if( item->isDir() && isOpen( item) )
{
kDebug(250) << "Setting folder open pixmap !";
item->setPixmap( 0, itemIcon( item ));
}
else
{
item->setPixmap( 0, it.value().originalPixmap );
}
m_mapCurrentOpeningFolders.remove( item );
}
else
{
if( item )
kDebug(250)<< "StopAnimation - could not find item " << item->url().prettyUrl();
else
kDebug(250)<< "StopAnimation - item is zero !";
}
if (m_mapCurrentOpeningFolders.isEmpty())
m_animationTimer->stop();
}
K3FileTreeViewItem * K3FileTreeView::currentKFileTreeViewItem() const
{
return static_cast<K3FileTreeViewItem *>( selectedItem() );
}
KUrl K3FileTreeView::currentUrl() const
{
K3FileTreeViewItem *item = currentKFileTreeViewItem();
if ( item )
return currentKFileTreeViewItem()->url();
else
return KUrl();
}
void K3FileTreeView::slotOnItem( Q3ListViewItem *item )
{
K3FileTreeViewItem *i = static_cast<K3FileTreeViewItem *>( item );
if( i )
{
const KUrl url = i->url();
if ( url.isLocalFile() )
emit onItem( url.toLocalFile() );
else
emit onItem( url.prettyUrl() );
}
}
void K3FileTreeView::slotItemRenamed(Q3ListViewItem* item, const QString &name, int col)
{
(void) item;
kDebug(250) << "Do not bother: " << name << col;
}
K3FileTreeViewItem *K3FileTreeView::findItem( const QString& branchName, const QString& relUrl )
{
KFileTreeBranch *br = branch( branchName );
return( findItem( br, relUrl ));
}
K3FileTreeViewItem *K3FileTreeView::findItem( KFileTreeBranch* brnch, const QString& relUrl )
{
K3FileTreeViewItem *ret = 0;
if( brnch )
{
KUrl url = brnch->rootUrl();
if( ! relUrl.isEmpty() && QDir::isRelativePath(relUrl) )
{
QString partUrl( relUrl );
if( partUrl.endsWith('/'))
partUrl.truncate( relUrl.length()-1 );
url.addPath( partUrl );
kDebug(250) << "assembled complete dir string " << url.prettyUrl();
KFileItem fi = brnch->findByUrl( url );
if( !fi.isNull() )
{
ret =
const_cast<K3FileTreeViewItem *>(
static_cast<const K3FileTreeViewItem*>(fi.extraData(brnch)));
kDebug(250) << "Found item !" <<ret;
}
}
else
{
ret = brnch->root();
}
}
return( ret );
}
bool K3FileTreeView::showFolderOpenPixmap() const
{
return m_wantOpenFolderPixmaps;
}
void K3FileTreeView::setShowFolderOpenPixmap( bool showIt )
{
m_wantOpenFolderPixmaps = showIt;
}
void K3FileTreeView::slotSetNextUrlToSelect( const KUrl &url )
{
m_nextUrlToSelect = url;
}
///////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////
#include "k3filetreeview.moc"
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